- Category: Landcover
- Type: Forest or Wood
- Latitude/Longitude: 51°58'14"N 4°52'16"W
- Eastings/Northings: 202879, 234140
- OS Grid: SN028341
- Mapcode Local: GBR CQ.L0D4
- Mapcode Global: VH1QP.JQ6M
Location and coordinates are for the approximate centre of Allt Pen-rhiw within this administrative area.
Geographic features and populated places may cross administrative borders.